Length measuring device for alkali aggregate test

Abstract

The utility model discloses a length measuring device for an alkali aggregate test, which comprises a test piece box (1), a box cover (2) is arranged on the test piece box (1), a sensor (3) is arranged in the box cover (2), and a support structure (4) is arranged in the test piece box (1); the supporting structure (4) is used for supporting the alkali aggregate test piece in the test piece box (1), so that the problem that the alkali aggregate test piece is inclined during an experiment and the like to influence an experiment result is solved, and the sensor (3) is used for measuring the change of the length of the test piece. The supporting structure (4) comprises a test piece frame (41) which is arranged in the test piece box (1) and is used for fixing an alkali aggregate test piece and a supporting seat (42) for supporting the alkali aggregate test piece; the alkali aggregate test pieces are fixed through the test piece frame (41) on the side edge, the vertical state of the alkali aggregate test pieces is kept, the test piece frame (41) can be arranged in a one-row and multi-column frame form, a plurality of alkali aggregate test pieces are fixed at the same time, and the test device is suitable for batch tests.

Description

Technical Field

[0001] The utility model belongs to the technical field of alkali aggregate reaction test, and specifically relates to a length measuring device used for alkali aggregate test. Background Art

[0002] The alkali aggregate test can be used to characterize whether the aggregate contains alkali-active minerals. The standard basis used is construction pebbles, crushed stones and construction sand. At present, the alkali aggregate test is carried out in the laboratory, mainly by crushing the aggregate into 25×25×280mm concrete prisms, placing the specimens in a specimen box and injecting 1 mol / L of alkali solution into it, placing the specimen box containing the specimens in an alkali aggregate reaction box for water bath heating and curing. After curing to the specified age, the specimens are taken out of the high-temperature water bath, and the change in the length of the specimens is measured within 15 seconds, and the expansion rate is calculated.

[0003] The patent number is 202022353264.9, and a public specification published on June 8, 2021 discloses a direct-reading constant temperature and humidity alkali aggregate length measuring device, including a special constant temperature overflow water tank, a new type of length measuring instrument is fixedly arranged inside the special constant temperature overflow water tank, a special displacement meter is fixedly installed in the middle of the new type of length measuring instrument, one end of the special displacement meter is fixedly connected to a support spring, one end of the support spring is fixedly connected to a fastening frame, one end of the fastening frame is overlapped with an upper bowl-shaped clamp, and one end of the upper bowl-shaped clamp is overlapped with a workpiece to be measured. The advantage of the utility model is that in the direct-reading constant temperature and humidity alkali aggregate length measuring device, the special displacement meter is connected to the displacement acquisition controller through a wire, so that the data measured and collected by the special displacement meter is transmitted to the displacement acquisition controller through the wire, and the displacement acquisition controller can intuitively display the measured data, so that the data can be directly, quickly, accurately and effectively measured and the electronic data can be stored for a long time.

[0004] In the prior art, since the alkali aggregate specimen is placed in a high-temperature water bath, there is a risk of high-temperature burns if the test operation is not performed skillfully. Due to the inconsistency of the techniques used by different operators, large experimental errors may occur. Utility Model Content

[0005] The utility model aims to provide a length measuring device for alkali aggregate test with high test safety.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a length measuring device for alkali aggregate test, including a specimen box, a box cover is provided on the specimen box, a sensor is provided in the box cover, and a support structure is provided in the specimen box.

[0007] The supporting structure comprises a specimen frame arranged in the specimen box for fixing the alkali-aggregate specimen and a supporting seat for supporting the alkali-aggregate specimen.

[0008] The support seat is provided with a corner plate matched with the edge of the alkali aggregate specimen, and the support seat is provided with a positioning hole matched with the nail head at the bottom of the alkali aggregate specimen.

[0009] An embedded block is arranged in the support seat, and the embedded block is arranged in the test piece box.

[0010] A discharge pipe is arranged in the embedded block, the end of the discharge pipe is located on the outer surface of the test piece box, and a valve is arranged on the discharge pipe.

[0011] The test piece box is provided with a groove, and the valve is located in the groove.

[0012] The inner embedded block is provided with a spring plate, and the support seat sleeve is arranged on the inner embedded block.

[0013] A sealing block is arranged in the supporting seat.

[0014] A top block is arranged inside the box cover, and the top block is in a table shape.

[0015] A buckle is provided between the box cover and the test piece box.

[0016] The technical effect of the utility model is as follows: the supporting structure in the specimen box is used to maintain the alkali-aggregate specimen in a vertical state during the experiment, and after the test, the reagents in the specimen box can be discharged through the unloading pipe, and the support seat can eject the specimen, which solves the risk problem of high-temperature transfer of the specimen during the test operation of the alkali-aggregate specimen, simplifies the test steps, and the overall operation process is simple, efficient, convenient and safe, which greatly improves the efficiency of the laboratory in conducting alkali-aggregate specimen testing and is of great help to the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 This is a schematic structural diagram of a length measuring device for alkali aggregate testing according to the utility model;

[0019] Figure 2 for Figure 1 An enlarged schematic diagram of point A of a length measuring device used for alkali aggregate testing.

[0020] The markings in the figure are: 1. test piece box; 2. box cover; 3. sensor; 4. supporting structure; 41. test piece rack; 42. supporting seat; 43. corner plate; 44. positioning hole; 45. embedded block; 46. discharge pipe; 47. valve; 48. spring plate; 5. groove; 6. sealing block; 7. top block; 8. buckle. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation methods of the utility model by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model and facilitating its implementation.

[0022] See also Figure 1-2 A length measuring device for alkali aggregate test comprises a specimen box 1, a box cover 2 is arranged on the specimen box 1, a sensor 3 is arranged in the box cover 2, and a support structure 4 is arranged in the specimen box 1; the support structure 4 is used to support the alkali aggregate specimen in the specimen box 1 to ensure that the alkali aggregate specimen will not tilt during the experiment, which may affect the experimental results, and the sensor 3 is used to measure the change in the length of the specimen.

[0023] The supporting structure 4 includes a specimen rack 41 for fixing the alkali-aggregate specimen and a support seat 42 for supporting the alkali-aggregate specimen, which are arranged in the specimen box 1; the side specimen rack 41 is used to fix the alkali-aggregate specimen, and the support seat 42 is used to support the alkali-aggregate specimen, so as to maintain the vertical state of the alkali-aggregate specimen, and the specimen rack 41 can be arranged in a frame form of one row and multiple columns to fix multiple alkali-aggregate specimens at the same time, which is suitable for batch testing.

[0024] The support seat 42 is provided with a corner plate 43 that matches the edge of the alkali aggregate specimen, and the support seat 42 is provided with a positioning hole 44 that matches the nail head at the bottom of the alkali aggregate specimen; when the alkali aggregate specimen is placed, the corner plate 43 is used to clamp the alkali aggregate specimen, and the position of the alkali aggregate specimen is fixed by the cooperation between the nail head and the positioning hole 44.

[0025] An embedded block 45 is provided in the support seat 42, and the embedded block 45 is arranged in the specimen box 1; the support seat 42 is sleeved on the embedded block 45, so that the support seat 42 can move up and down, which is convenient for placing the alkali aggregate specimen.

[0026] A discharge pipe 46 is provided in the embedded block 45, the end of which is located on the outer surface of the specimen box 1, and a valve 47 is provided on the discharge pipe 46; the reagent in the specimen box 1 is discharged through the discharge pipe 46, so that the top of the alkali-aggregate specimen can be separated from the liquid surface, making it convenient to take the alkali-aggregate specimen out of the reagent box.

[0027] The test box 1 is provided with a groove 5, and the valve 47 is located in the groove 5, so as to prevent the valve 47 from protruding from the surface of the test box 1 and affecting the placement of the test box 1 into the reaction box.

[0028] A spring plate 48 is provided on the embedded block 45 , and the support seat 42 is sleeved on the embedded block 45 ; the spring plate 48 can be used to lift the support seat 42 when the support seat 42 is not subjected to pressure.

[0029] A sealing block 6 is provided in the support seat 42 ; the sealing block 6 is used to block the pipe opening of the discharge pipe 46 to avoid leakage.

[0030] A top block 7 is arranged inside the box cover 2, and the top block 7 is in a table shape; the top block 7 is used to press down the alkali-aggregate specimen so that the alkali-aggregate specimen can be immersed in the reagent.

[0031] A buckle 8 is provided between the box cover 2 and the test piece box 1; the box cover 2 is fixed to the test kit by the buckle 8 to prevent it from falling off.

[0032] The technical effect of the utility model is as follows: the support structure 4 in the specimen box 1 is used to maintain the alkali aggregate specimen in a vertical state during the experiment, and after the test, the solvent in the specimen box 1 can be discharged through the discharge pipe 46, and the support seat 42 can eject the specimen, which solves the risk problem of high-temperature transfer of the specimen during the alkali aggregate specimen test operation, simplifies the test steps, and the overall operation process is simple, efficient, convenient and safe, which greatly improves the efficiency of the laboratory in conducting alkali aggregate specimen testing and is of great help to the experiment.

[0033] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A length measuring device for alkali aggregate testing, characterized in that: The invention comprises a test box (1), wherein a box cover (2) is provided on the test box (1), a sensor (3) is provided inside the box cover (2), and a support structure (4) is provided inside the test box (1).

2. A length measuring device for alkali aggregate test according to claim 1, characterized in that: The support structure (4) comprises a specimen frame (41) arranged in the specimen box (1) for fixing the alkali aggregate specimen and a support seat (42) for supporting the alkali aggregate specimen.

3. A length measuring device for alkali aggregate test according to claim 2, characterized in that: The support seat (42) is provided with a corner plate (43) matched with the edge of the alkali aggregate specimen, and the support seat (42) is provided with a positioning hole (44) matched with the nail head at the bottom of the alkali aggregate specimen.

4. A length measuring device for alkali aggregate test according to claim 2 or 3, characterized in that: An embedded block (45) is provided in the support seat (42), and the embedded block (45) is arranged in the specimen box (1).

5. A length measuring device for alkali aggregate test according to claim 4, characterized in that: A discharge pipe (46) is provided in the embedded block (45), the end of the discharge pipe (46) is located on the outer surface of the test piece box (1), and a valve (47) is provided on the discharge pipe (46).

6. A length measuring device for alkali aggregate test according to claim 5, characterized in that: The test piece box (1) is provided with a groove (5), and the valve (47) is located in the groove (5).

7. A length measuring device for alkali aggregate test according to claim 4, characterized in that: The embedded block (45) is provided with a spring plate (48), and the support seat (42) is sleeved on the embedded block (45).

8. A length measuring device for alkali aggregate test according to claim 5 or 7, characterized in that: A sealing block (6) is provided inside the support seat (42).

9. The length measuring device for alkali aggregate test according to claim 1, characterized in that: A top block (7) is arranged inside the box cover (2), and the top block (7) is in a table shape.

10. A length measuring device for alkali aggregate test according to claim 1 or 9, characterized in that: A buckle (8) is provided between the box cover (2) and the specimen box (1).

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